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Solid-state batteries: Why Toyota's plans could be a game-changer for EVs

Word out of Japan today is that Toyota is working on launching a new solid-state battery for electric vehicles that will put it solidly in the EV game by 2022. Which leads to a simple question: What is a solid-state battery, and why does it matter? Back in February, John Goodenough observed, "Cost, safety, energy density, rates of charge and discharge and cycle life are critical for battery-driven cars to be more widely adopted." And risking a bad pun on his surname, he seemed to be implying that all of those characteristics weren't currently good enough in autos using lithium-ion batteries. This comment is relevant because Goodenough, professor at the Cockrell School of Engineering at the University of Texas at Austin - it so happens, he turns 95 today - is the co-inventor of the lithium-ion battery, the type of battery that is pretty much the mainstay of current electric vehicles. And he and a research fellow at U of T were announcing they'd developed a solid-state battery, one that has improved energy density (which means a car so equipped can drive further) and can be recharged more quickly and more often (a.k.a., "long cycle life") than a lithium-ion battery. (Did you ever notice that with time your iPhone keeps less of a charge than it did back when it was shiny and new? That's because it has a limited cycle life. Which is one thing when you're talking about a phone. And something else entirely when it involves a whole car.) What's more, there is reduced mass for a solid-state battery. And there isn't the same safety concern that exists with li-ion batteries vis-a- vis conflagration (which is why at airplane boarding gates they say they'll check your carryon as long as you remove all lithium-ion batteries). Lithium-ion batteries may be far more advanced than the lead-acid batteries that are under the hood of essentially every car that wasn't built in Fremont, Calif., but as is the case with those heavy black rectangles, li-ion batteries contain a liquid. In the lithium-ion battery, the liquid, the electrolyte, moves the lithium ions from the negative to the positive side (anode to cathode) of the battery. In a solid-state design, there is no liquid sloshing around, which also means that there's no liquid that would freeze at low operating temperatures. What Toyota is using for its solid-state battery is still unknown, as is the case for the solid-state batteries that Hyundai is reportedly working on for its EVs.

Toyota Aygo X-Wave pops its top

Chop the top off a car and you'll let the sunshine and warm air in, but you'll also get a car that's heavier, less rigid and costlier. That's why European hatchbacks in particular have been increasingly favoring retractable fabric roof panels that keep the structural integrity in tact while letting the sunshine in. The Fiat 500C, Citroen DS3 Cabrio and Renault Twingo all offer this type of setup – as do the Peugeot 108 and Citroen C1, and now their Toyota platform-mate is following them down the same path. Recently announced in the UK is this Toyota Aygo with X-Wave roof option. It's a black canvas panel that opens up the space above both rows of seats at the push of a button. Unlike the roofs on some of the other aforementioned European city cars, it doesn't extend all the way down to the base of the back window, but that just means it doesn't stack up and impede cargo space and rearward visibility. Toyota is bundling the X-Wave roof option with additional equipment like upgraded lighting, infotainment system and alloys for GBP895, taxes included (equivalent to $1,355 at today's exchange rates). That's a lot less than Fiat, for example, gets for upgrading from a 500 to a 500C on either side of the Atlantic. It's also even less than Peugeot and Citroen charge for similar options on their versions of the same vehicle in the UK, and that strikes us as a pretty cost-effective way to go motoring with the top down. LESS METAL, MORE FUN WITH AYGO'S X-WAVE OPEN TOP OPTION How do you make driving a Toyota Aygo even more fun? One sure-fire way is to provide some classic open-top enjoyment with a new retractable x-wave canvas roof. Looking ahead to longer, warmer days, Toyota has launched the x-wave as an option on the five-door Aygo x-pression model. Finished in black, the roof is factory fitted and is full length, ensuring that anyone travelling in the rear seats also gets to enjoy some of the wind-in-the-hair experience. The roof is electrically operated, using a simple switch next to the map light control in the headlining. Specifying the x-wave adds even more appeal to the Aygo x-pression, which also features 15-inch alloy wheels, front fog lamps, projector headlights with LED daytime running lights, the x-touch multimedia system with DAB and Bluetooth, reversing camera and air conditioning.

Best compact SUVs of 2022

Compact SUVs are now the go-to choice for family transportation. Actually, considering how popular they are, they have clearly moved beyond only family duty. With such popularity, though, comes an awful lot of competitors, and it can be difficult to figure out which one might be the best compact SUV for you.  It's important to note that by "compact SUV" we're talking about a specific segment. As we describe in our more comprehensive "Best small SUVs" list, there are also subcompact SUVs that vary widely in size amongst themselves, but are clearly smaller than the SUVs below. Frankly, today's segment of compact SUVs isn't exactly compact — some have more cargo space than vehicles that are considered midsize based on their exterior dimensions. They've all grown considerably over the years. While many lists out there just rattle off every vehicle available in a segment, we thought we'd be a bit more helpful and curate your shopping a bit with the top-recommended choices reviewed by Autoblog. We've included both mainstream and compact luxury SUV choices. Best compact SUVs of 2023 and 2024 2024 Honda CR-V Why it stands out: Best-in-class space; excellent hybrid powertrain; sharp interior style; Honda dependabilityCould be better: No lower-price base trim levels; no sporty or off-road niche models; no plug-in hybrid Read our full 2024 Honda CR-V Review Consider the CR-V the baseline for any compact SUV search, and look extra closely at the superb CR-V Hybrid option. Objectively speaking, it's tough to beat due to its massive cargo capacity, voluminous back seat, strong-yet-efficient engines, well-balanced driving dynamics, competitive pricing and features,  and well-regarded reliability. It's easy to see why it continues to be such a best-seller: for the vast majority of compact SUV buyers, and especially families, it checks every box. That's been the case for many years now, however. The all-new 2023 Honda CR-V changes things up by adding a bit more style and character, particularly in terms of its interior design and how surprisingly enjoyable the Sport and Sport Touring hybrid trim levels are to drive.